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    Verified drywall insulation services reviews

Top-Rated Drywall insulation pros in Saint Helena - Updated Nov 2026

Avatar for Ace Insulation, Inc.
Ace Insulation, Inc.
3.5(
30
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Saint Helena, CA and surrounding areas

Approved

In business since 2011

Free estimates

Credit card accepted

"I needed to fix ceiling insulation after a major leak into the living room. The insulation was pulled up to allow things to dry out, but the company that did the drying (Stanley Steamer) said they would not put the insulation back. I called Ace because of all the great reviews on yelp. The bid was $650. I accepted it, and an excellent workman arrived on time as arranged. Here is the rub: The workman was finshed in 1/2 hr (!!!!!), and my jaw dropped. I thought for the price must be going to take at least a few hours. I had agreed to the price, though, so I wrote the check, as well as an email to the estimator for the job explaining how distressed I was by this. The email was passed to the manager of the Sacramento office, who called me right away. He said he would have felt the same, and that he would tear up the check and give me a new price. We met the next week, and he charged me half of the original bid. He gave me my original check and took my new check for $325. Here is what you should know about the price: The invoice had two *Service* items: a *show up fee* of $250, and another called *Work performed as per quote. This was followed by a *Quote adjustment based on actual work* of -$325. I truly appreciate the businesslike approach to the work: On time, done right as best I can tell. I also appreciate the response to my distress over the clear miscalculation. In spite of this, I feel overcharged even at half the original quote. The *show up fee* should have covered everything, so the maximum bill should have been $250. There was extremely little work performed, even if it was done well and professionally. In retrospect, I have no idea what the estimator included in $400 for *Work performed as per quote.* What did Ace do wrong? The estimator should have seen there was less than an hours work involved and told me that the minimum charge would be $250 to show up. If there were other minimum charges, such as a minimum of an hour of work, those should have been explained by the estimator so that I had some basis for understanding the bid and the opportunity to decide that the price was possibly going to be too high. The estimator said nothing about this, and there was no detail in the estimate. I believe I have given a fair revue for this disappointing experience. Ace has excellent customer service, and as best I can tell, the work was performed well. The pricing at first was way out of line, and ultimately still seems to me to be too high. But the job is done, and I am sure if there is any reason to, Ace will stand behind their work."
Response time2 days
57 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for C E L Insulation
C E L Insulation
4.0(
25
)
Injection Insulation - Install

Serving Saint Helena, CA and surrounding areas

In business since 2011

Free estimates

Offers commercial services

"Great company with great customer service. They were really professional and personable with everyone. I did a bit of research and got some additional estimates. Still very, very happy with their work. They were respectful of my property while doing the work. I most definitely will continue to hire and I highly recommend."
Response time2 days
Response rate86%
Recommended by80%of homeowners
Avatar for Landmark Energy Upgrades
Landmark Energy Upgrades
4.8(
59
)
Blown-In Insulation - Install or UpgradeInjection Insulation - InstallInsulation - Install or Upgrade

Serving Saint Helena, CA and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"We have a 1970's and we decided to have an energy audit by Landmark Construction. It was clear that our house have some energy issues and was in need of a any type of energy overhaul.  The report that was prepared for us by Charlie and his office staff, was comprehensive, clear to understand and revealed that the ducts at the attic  was not sized appropriately. In addition to that, the furnace/AC in the smaller unit was old (and original) and had to be replaced. The recommendations that Charlie told us, included a new furnace/AC, new tankless water system, hot water pipe insulation, building sealing, the insulation and new ducting throughout the house. This was the best investment we ever made.  I could not believe the difference in our utilities bill.  Charlie and his team were great,  professional and experienced. I wish we did these 15 years ago!!
"
Cool Roof Install
Energy Upgrade
HVAC Air Duct
Home Energy Audit
Energy Upgrade Contractors

+6

Recommended by98%of homeowners
Empire Insulation Contractors
3.8(
18
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Saint Helena, CA and surrounding areas

In business since 2003

Free estimates

"Craig, good natured guy whose rig was wide and access to the property was difficult. After looking at numerous solutions, he had to back out blind and didn't hurt a twig doing it. Arrived on time, job took exactly time estimated, and appears to have topped off the job with few more inches than required. Best price as well. I was impressed. Definitely call again on other work and recommend to friends and clients."
Recommended by100%of homeowners
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Drywall Insulation FAQs, answered by experts

There shouldn’t be any gaps between your walls and ceiling. These can be fixed with joint compound but that is only a fix, and it’s much better if your drywall fits correctly in the first place. Sometimes gaps can appear if your foundation shifts significantly but if this is the case, you have a much bigger problem than patching drywall.

There are six levels of drywall finish, from 0 to 5, that refer to the amount of work performed during the finishing process.

Level 0: Drywall is hung with no finishing work.

Level 1: Tape is placed over the seams between drywall sheets.

Level 2: A thin layer of mud is applied over the tape and screw holes. This level is common for utility rooms or walls that will be covered.

Level 3: A full coat of mud covers the screw holes and tape, but the surface is not sanded. This is often used in garages.

Level 4: This is the most common finish for visible interior walls. It involves applying two coats of mud over seams and screw holes, with sanding between each coat, creating a smooth surface ready for flat paint.

Level 5: This is a high-end finish for luxury homes. It includes full taping, mudding, and sanding, plus a final skim coat over the entire surface before painting.

If you already have plaster walls and ceilings, adding new plaster costs $2 to $10 per square foot. For an average-sized room, that would come out to $1,200 to $10,000. However, the cost to replace plaster with drywall is higher—running between $720 and $1,250 for a 10-by-8-foot wall or ceiling (not including drywall finishing).

Drywall is safe to cut as long as you follow proper procedures, such as wearing personal protective equipment and using the right tools to score and cut the drywall. When cutting new drywall, it can release dust with silica and other compounds that could pose health risks. Leave cutting drywall to the pros, or wear a high-quality respiratory mask, goggles, and other PPE when handling drywall.

You can put drywall mud over paint to even out the surface or entirely resurface it. Sand the surface with 280-grit sandpaper, vacuum the debris and dust with a shop vac, and clean it with a slightly damp cloth. Allow the surface to dry. Apply drywall primer, especially if you’re skim-coating an entire wall. Apply the right type of drywall mud over the surface and smooth it with a trowel. Allow the layer to cure fully, then sand it before applying another layer or painting it.

The Saint Helena, CA homeowners’ guide to drywall insulation services

From average costs to expert advice, get all the answers you need to get your job done.